Loss of consciousness due to the interruption of breathing and consequent anoxia.
Loss of consciousness due to the body's inability to deliver oxygen to its tissues, either by the breathing of air lacking oxygen or by the inability of the blood to carry oxygen.
A sensation of whirling and loss of balance, caused by looking down from a great height or by disease affecting the inner ear.
The act of whirling round and round; rapid rotation.
A disordered or imbalanced state of mind or things analogous to physical vertigo; mental giddiness or dizziness.